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Finding the Fourth Proportional to 397,388.44, 548,410.45 and 227,655.37

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Solution

The fourth proportional to 397,388.44, 548,410.45 and 227,655.37 is: 314,172.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,388.44 : 548,410.45 = 227,655.37 : x
  2. Step 2: Convert to fraction form
    397,388.44/548,410.45 = 227,655.37/x
  3. Step 3: Cross multiply
    397,388.44x = 548,410.45 × 227,655.37
  4. Step 4: Simplify right side
    397,388.44x = 124,848,583,906.62
  5. Step 5: Solve for x
    x = 124,848,583,906.62/397,388.44
  6. Step 6: Final answer
    x = 314,172.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.